"Aspin Bubbles" is a mechanical theory where with one single wave-particle interaction it is possible to reproduce all known forces and besides obtain still undiscovered forces. We’ll see that the mechanical wave-particle interaction leads us to understanding and obtaining the electrical forces and, considering that these forces have a small unobserved asymmetry, the force of gravity is obtained. The theory is based on the hypothesis that the primary components of matter are only two pulsating particles that generate spherical waves in an elastic medium filling up the whole universe. The interaction between these particles and their waves reproduces all forces in Nature. The theory also constructs and describes the internal structure of the atom as well as its fundamental particles and other known particles.